So, for the past year, I have been working out regularly and eating right (okay, eating right 95% of the time

). I have dropped almost 100 pounds...I hate to admit that I had let myself get that out of control. Anyway, I've got a few more to go before I get to the maintenance stage.
I hit a wall in late June. The steady loss I was experiencing just stopped. I increased my workouts (heavier weights, longer cardio), I continued to watch what I ate, but...nothing. I've talked to a personal trainer and a few fitness buffs that I know and read tons of articles. They all say the same thing...eventually the loss will start again, my body is in some sort of re-boot process, and just keep at it.
How have you gotten off the plateau? Did you make a drastic change? Did you just keep steady and wait it out? Ideas would be appreciated.